linux-zen-server/arch/arm/boot/dts/da850-lcdk.dts

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (c) 2016 BayLibre, Inc.
 */
/dts-v1/;
#include "da850.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>

/ {
	model = "DA850/AM1808/OMAP-L138 LCDK";
	compatible = "ti,da850-lcdk", "ti,da850";

	aliases {
		serial2 = &serial2;
		ethernet0 = &eth0;
	};

	chosen {
		stdout-path = "serial2:115200n8";
	};

	memory@c0000000 {
		/* 128 MB DDR2 SDRAM @ 0xc0000000 */
		reg = <0xc0000000 0x08000000>;
	};

	reserved-memory {
		#address-cells = <1>;
		#size-cells = <1>;
		ranges;

		dsp_memory_region: dsp-memory@c3000000 {
			compatible = "shared-dma-pool";
			reg = <0xc3000000 0x1000000>;
			reusable;
			status = "okay";
		};
	};

	vcc_5vd: fixedregulator-vcc_5vd {
		compatible = "regulator-fixed";
		regulator-name = "vcc_5vd";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		regulator-boot-on;
	};

	vcc_3v3d: fixedregulator-vcc_3v3d {
		/* TPS650250 - VDCDC1 */
		compatible = "regulator-fixed";
		regulator-name = "vcc_3v3d";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		vin-supply = <&vcc_5vd>;
		regulator-always-on;
		regulator-boot-on;
	};

	vcc_1v8d: fixedregulator-vcc_1v8d {
		/* TPS650250 - VDCDC2 */
		compatible = "regulator-fixed";
		regulator-name = "vcc_1v8d";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		vin-supply = <&vcc_5vd>;
		regulator-always-on;
		regulator-boot-on;
	};

	sound {
		compatible = "simple-audio-card";
		simple-audio-card,name = "DA850-OMAPL138 LCDK";
		simple-audio-card,widgets =
			"Line", "Line In",
			"Line", "Line Out",
			"Microphone", "Mic Jack";
		simple-audio-card,routing =
			"LINE1L", "Line In",
			"LINE1R", "Line In",
			"Line Out", "LLOUT",
			"Line Out", "RLOUT",
			"MIC3L", "Mic Jack",
			"MIC3R", "Mic Jack",
			"Mic Jack", "Mic Bias";
		simple-audio-card,format = "dsp_b";
		simple-audio-card,bitclock-master = <&link0_codec>;
		simple-audio-card,frame-master = <&link0_codec>;
		simple-audio-card,bitclock-inversion;

		simple-audio-card,cpu {
			sound-dai = <&mcasp0>;
			system-clock-frequency = <24576000>;
		};

		link0_codec: simple-audio-card,codec {
			sound-dai = <&tlv320aic3106>;
			system-clock-frequency = <24576000>;
		};
	};

	gpio-keys {
		compatible = "gpio-keys";
		autorepeat;

		user1 {
			label = "GPIO Key USER1";
			linux,code = <BTN_0>;
			gpios = <&gpio 36 GPIO_ACTIVE_LOW>;
		};

		user2 {
			label = "GPIO Key USER2";
			linux,code = <BTN_1>;
			gpios = <&gpio 37 GPIO_ACTIVE_LOW>;
		};
	};

	vga-bridge {
		compatible = "ti,ths8135";
		#address-cells = <1>;
		#size-cells = <0>;

		ports {
			#address-cells = <1>;
			#size-cells = <0>;

			port@0 {
				reg = <0>;

				vga_bridge_in: endpoint {
					remote-endpoint = <&lcdc_out_vga>;
				};
			};

			port@1 {
				reg = <1>;

				vga_bridge_out: endpoint {
					remote-endpoint = <&vga_con_in>;
				};
			};
		};
	};

	vga {
		compatible = "vga-connector";

		ddc-i2c-bus = <&i2c0>;

		port {
			vga_con_in: endpoint {
				remote-endpoint = <&vga_bridge_out>;
			};
		};
	};

	cvdd: regulator0 {
		compatible = "regulator-fixed";
		regulator-name = "cvdd";
		regulator-min-microvolt = <1300000>;
		regulator-max-microvolt = <1300000>;
		regulator-always-on;
		regulator-boot-on;
	};
};

&ref_clk {
	clock-frequency = <24000000>;
};

&cpu {
	cpu-supply = <&cvdd>;
};

/*
 * LCDK has a fixed CVDD of 1.3V, so only operating points >= 300MHz are
 * valid. Unfortunately due to a problem with the DA8XX OHCI controller, we
 * can't enable more than one OPP by default, since the controller sometimes
 * becomes unresponsive after a transition. Fix the frequency at 456 MHz.
 */

&opp_100 {
	status = "disabled";
};

&opp_200 {
	status = "disabled";
};

&opp_300 {
	status = "disabled";
};

&opp_456 {
	status = "okay";
};

&pmx_core {
	status = "okay";

	mcasp0_pins: pinmux_mcasp0_pins {
		pinctrl-single,bits = <
			/* AHCLKX AFSX ACLKX */
			0x00 0x00101010 0x00f0f0f0
			/* ARX13 ARX14 */
			0x04 0x00000110 0x00000ff0
		>;
	};

	nand_pins: nand_pins {
		pinctrl-single,bits = <
			/* EMA_WAIT[0], EMA_OE, EMA_WE, EMA_CS[3] */
			0x1c 0x10110010  0xf0ff00f0
			/*
			 * EMA_D[0], EMA_D[1], EMA_D[2],
			 * EMA_D[3], EMA_D[4], EMA_D[5],
			 * EMA_D[6], EMA_D[7]
			 */
			0x24 0x11111111  0xffffffff
			/*
			 * EMA_D[8],  EMA_D[9],  EMA_D[10],
			 * EMA_D[11], EMA_D[12], EMA_D[13],
			 * EMA_D[14], EMA_D[15]
			 */
			0x20 0x11111111  0xffffffff
			/* EMA_A[1], EMA_A[2] */
			0x30 0x01100000  0x0ff00000
		>;
	};
};

&serial2 {
	pinctrl-names = "default";
	pinctrl-0 = <&serial2_rxtx_pins>;
	status = "okay";
};

&wdt {
	status = "okay";
};

&rtc0 {
	status = "okay";
};

&gpio {
	status = "okay";
};

&sata_refclk {
	status = "okay";
	clock-frequency = <100000000>;
};

&sata {
	status = "okay";
};

&mdio {
	pinctrl-names = "default";
	pinctrl-0 = <&mdio_pins>;
	bus_freq = <2200000>;
	status = "okay";
};

&eth0 {
	pinctrl-names = "default";
	pinctrl-0 = <&mii_pins>;
	status = "okay";
};

&mmc0 {
	max-frequency = <50000000>;
	bus-width = <4>;
	pinctrl-names = "default";
	pinctrl-0 = <&mmc0_pins>;
	cd-gpios = <&gpio 64 GPIO_ACTIVE_LOW>;
	status = "okay";
};

&i2c0 {
	pinctrl-names = "default";
	pinctrl-0 = <&i2c0_pins>;
	clock-frequency = <100000>;
	status = "okay";

	tlv320aic3106: tlv320aic3106@18 {
		#sound-dai-cells = <0>;
		compatible = "ti,tlv320aic3106";
		reg = <0x18>;
		adc-settle-ms = <40>;
		ai3x-micbias-vg = <1>;		/* 2.0V */
		status = "okay";

		/* Regulators */
		IOVDD-supply = <&vcc_3v3d>;
		AVDD-supply = <&vcc_3v3d>;
		DRVDD-supply = <&vcc_3v3d>;
		DVDD-supply = <&vcc_1v8d>;
	};
};

&mcasp0 {
	#sound-dai-cells = <0>;
	pinctrl-names = "default";
	pinctrl-0 = <&mcasp0_pins>;
	status = "okay";

	op-mode = <0>;   /* DAVINCI_MCASP_IIS_MODE */
	tdm-slots = <2>;
	serial-dir = <   /* 0: INACTIVE, 1: TX, 2: RX */
		0 0 0 0
		0 0 0 0
		0 0 0 0
		0 1 2 0
	>;
	tx-num-evt = <32>;
	rx-num-evt = <32>;
};

&usb_phy {
	status = "okay";
};

&usb0 {
	status = "okay";
};

&usb1 {
	status = "okay";
};

&aemif {
	pinctrl-names = "default";
	pinctrl-0 = <&nand_pins>;
	status = "okay";
	cs3 {
		#address-cells = <2>;
		#size-cells = <1>;
		clock-ranges;
		ranges;

		ti,cs-chipselect = <3>;

		nand@2000000,0 {
			compatible = "ti,davinci-nand";
			#address-cells = <1>;
			#size-cells = <1>;
			reg = <0 0x02000000 0x02000000
			       1 0x00000000 0x00008000>;

			ti,davinci-chipselect = <1>;
			ti,davinci-mask-ale = <0>;
			ti,davinci-mask-cle = <0>;
			ti,davinci-mask-chipsel = <0>;

			ti,davinci-nand-buswidth = <16>;
			ti,davinci-ecc-mode = "hw";
			ti,davinci-ecc-bits = <4>;
			ti,davinci-nand-use-bbt;

			/*
			 * The OMAP-L132/L138 Bootloader doc SPRAB41E reads:
			 * "To boot from NAND Flash, the AIS should be written
			 * to NAND block 1 (NAND block 0 is not used by default)".
			 * The same doc mentions that for ROM "Silicon Revision 2.1",
			 * "Updated NAND boot mode to offer boot from block 0 or block 1".
			 * However the limitaion is left here by default for compatibility
			 * with older silicon and because it needs new boot pin settings
			 * not possible in stock LCDK.
			 */
			partitions {
				compatible = "fixed-partitions";
				#address-cells = <1>;
				#size-cells = <1>;

				partition@0 {
					label = "u-boot env";
					reg = <0 0x020000>;
				};
				partition@20000 {
					/* The LCDK defaults to booting from this partition */
					label = "u-boot";
					reg = <0x020000 0x080000>;
				};
				partition@a0000 {
					label = "free space";
					reg = <0x0a0000 0>;
				};
			};
		};
	};
};

&prictrl {
	status = "okay";
};

&memctrl {
	status = "okay";
};

&lcdc {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&lcd_pins>;

	port {
		lcdc_out_vga: endpoint {
			remote-endpoint = <&vga_bridge_in>;
		};
	};
};

&vpif {
	pinctrl-names = "default";
	pinctrl-0 = <&vpif_capture_pins>;
	status = "okay";
};

&dsp {
	memory-region = <&dsp_memory_region>;
	status = "okay";
};